vv. 1-4 At the end of the first century were Christians still
"in the truth"?
Again, 4 mentions of truth in this brief letter's intro (see 2 John 1-4).
Can we expect John's prayer that Gaius prosper (v.2) would be answered?
Did not Jesus pray that his disciples' converts would also be kept by the
Father? (John 17:11,12,15,20,21) Would Christ's wish that they be sanctified
in truth (John 17:17,19) be thwarted by Satan for18 out of the next 20
centuries, despite Christs promise I am with you always [literally,
all the days]? (Matt. 28:20)

vv. 9-14What are 3 characteristics of false teachers like
Diotrephes?
1. They love to have the first place among believers (v.9, NWT)
2. They do not accept the apostles' teaching (v.9)
3. They attempt to throw out of the congregation those who remain loyal
to the teaching and tradition of the apostles (v.10)